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POhow to get advantage of stateless framework
 

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    <p>I would like to use <a href="http://code.google.com/p/stateless" rel="nofollow noreferrer">http://code.google.com/p/stateless</a> in my code to separate the functionality from its dependencies. I didn't find any advanced examples of the usage, so this question is about stateless framework best practices.</p> <p>I have following configuration (this is just example, has only one function state): </p> <pre><code>var stateMachine = new StateMachine(State.Stopped); stateMachine.Configure(State.Stopped) .Permit(Trigger.Failed, State.Error) .Permit(Trigger.Succeed, State.GenerateMachineData); stateMachine.Configure(State.GenerateMachineData) .Permit(Trigger.Failed, State.Error) .Permit(Trigger.Succeed, State.Finished); public enum State { Stopped, GenerateMachineData, Finished, Error } public enum Trigger { Succeed, Failed } </code></pre> <p>where to call the actual functionality then. I had following ideas but each of them has advantages and disadvantages:</p> <p><strong>1) Set the functionality as well as next fire in OnEntry():</strong></p> <pre><code>stateMachine.Configure(State.GenerateMachineData) .OnEntry(() => { try { Generate(); stateMachine.Fire(Trigger.Succeed); } catch { stateMachine.Fire(Trigger.Error); } }) .Permit(Trigger.Failed, State.Error) .Permit(Trigger.Succeed, State.Finished); </code></pre> <p>so then if I just call </p> <pre><code>stateMachine.Fire(Trigger.Succeed); </code></pre> <p>it ends up either in State.Finished or State.Error</p> <ul> <li>advantages - all together</li> <li>disadvatages - the solution cant be really unittested</li> </ul> <p><strong>2) have statemachine and functionality separated like:</strong> <code><pre> void DoTheStuff() { switch (stateMachine.State) { State.Stopped: stateMachine.Fire(State.Succeed); break; State.GenerateMachineData: Generate(); stateMachine.Fire(State.Succeed); break; default: throw new Exception(); } }</p> <p>void Main() { while (stateMachine.State != State.Succeed &amp;&amp; stateMachine.State != State.Error) { DoTheStuff(); } } </code></pre></p> <ul> <li>advantages: the statemachine can be tested itself</li> <li>disadvantages: I quite don't like it</li> </ul> <p><strong>3) some other solution?</strong></p> <p>I will be glad for any answer</p>
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